Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 25, 2025
Robust
UiO-67-typed
Zr-HMOFs
1
and
2
(HMOFs
=
homochiral
metal-organic
frameworks)
functionalized
with
isomeric
chiral
amine
alcohol
pendants,
which
have
the
same
topology,
but
relative
positions
between
hydrogen-bonding
sites
carbons
are
different,
were
synthesized
as
adsorption
platforms
for
enantioseparation
of
1-phenylethanol,
1-phenyl-2-propanol,
2-phenyl-1-propanol.
Both
materials
exhibited
effective
performance
aforementioned
alcohols.
Particularly,
achieved
an
enantiomeric
excess
(ee)
value
96.4%
while
exceptionally
high
ee
99.6%
2-phenyl-1-propanol,
ranking
among
highest
values
reported
HMOFs.
Based
on
experimental
results
host-guest
structure
analysis,
it
can
be
inferred
that
higher
similarity
groups
directly
bonded
to
carbon
in
substrate,
better
enantioseparation.
Replacing
ligand
material
achiral
skeleton,
four
1@x
%
(x
being
molar
percentage
used
during
synthesis)
explore
impact
framework's
pore
size
active
site
concentration
separation
performance.
The
showed
1@50%
had
capacity
47.7
mg
g-1
98.6%,
respectively.
Chemical Science,
Journal Year:
2023,
Volume and Issue:
14(43), P. 11955 - 12003
Published: Jan. 1, 2023
Research
progress
and
potential
trends
about
six
critical
chiral
resolution
methods
are
summarized.
Notable
performance
improvements
based
on
the
state-of-the-art
“coupling”
strategies
highlighted.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(29)
Published: May 9, 2024
Membrane-based
enantioselective
separation
is
a
promising
method
for
chiral
resolution
due
to
its
low
cost
and
high
efficiency.
However,
scalable
fabrication
of
membranes
displaying
both
enantioselectivity
flux
enantiomers
still
challenge.
Here,
the
authors
report
preparation
homochiral
porous
organic
cage
(Covalent
3
(CC3)-R)-based
thin-film-composite
using
polyamide
(PA)
as
matrix,
where
fully
solvent-processable
crystals
have
good
compatibility
with
polymer
scaffold.
The
hierarchical
CC3-R
channels
consist
selective
windows
inner
cavities,
leading
favorable
permeation
enantiomers;
CC3-R/PA
composite
display
an
enantiomeric
excess
95.2%
R-(+)-limonene
over
S-(-)-limonene
99.9
mg
h
